MARTIN MARIETTA MATLS INC MLM
COM · Common Stock · CUSIP 573284106 · ISIN US5732841060
American Materials Company
- SectorMaterials
- IndustryMining & Quarrying of Nonmetallic Minerals (No Fuels)
- HeadquartersRaleigh, NC
- Founded1993
- Websitemartinmarietta.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($70.0m this quarter). Holder counts are more reliable. Shares outstanding: 60.1m as of 2026-07-27, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $576.46. Options: 10 managers hold calls ($103.1m notional), 9 hold puts ($48.7m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 737 |
| Q4 2022 | 767 |
| Q1 2023 | 747 |
| Q2 2023 | 805 |
| Q3 2023 | 816 |
| Q4 2023 | 889 |
| Q1 2024 | 957 |
| Q2 2024 | 940 |
| Q3 2024 | 949 |
| Q4 2024 | 992 |
| Q1 2025 | 956 |
| Q2 2025 | 999 |
| Q3 2025 | 1,052 |
| Q4 2025 | 1,118 |
| Q1 2026 | 1,075 |
| Q2 2026 | 1,074 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 450 | 396 |
| Q4 2024 | 442 | 422 |
| Q1 2025 | 446 | 457 |
| Q2 2025 | 495 | 398 |
| Q3 2025 | 486 | 407 |
| Q4 2025 | 457 | 419 |
| Q1 2026 | 454 | 511 |
| Q2 2026 | 463 | 490 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $83.4m | $49.1m | 0.59 |
| Q4 2025 | $51.1m | $23.3m | 0.46 |
| Q1 2026 | $92.7m | $39.7m | 0.43 |
| Q2 2026 | $103.1m | $48.7m | 0.47 |
Biggest buyers
| TCI FUND MANAGEMENT LTD | New | +1.3m |
| STATE STREET CORP | Added | +282.1k |
| GOLDMAN SACHS GROUP INC | Added | +277.5k |
| 59 North Capital Management, LP | New | +214.1k |
| VICTORY CAPITAL MANAGEMENT INC | Added | +146.3k |
| Freestone Grove Partners LP | New | +124.3k |
| Junto Capital Management LP | New | +123.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +110.5k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Added | +78.1k |
| RDST Capital LLC | Added | +68.5k |
Biggest sellers
| FMR LLC | Reduced | -415.4k |
| JPMORGAN CHASE & CO | Reduced | -393.3k |
| MORGAN STANLEY | Reduced | -329.6k |
| T. Rowe Price Investment Management, Inc. | Reduced | -311.1k |
| CONGRESS ASSET MANAGEMENT CO | Reduced | -177.0k |
| Rathbones Group PLC | Reduced | -165.6k |
| Aristotle Capital Management, LLC | Reduced | -123.5k |
| ALKEON CAPITAL MANAGEMENT LLC | Reduced | -120.0k |
| BAILLIE GIFFORD & CO | Reduced | -95.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | -90.5k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $41.8m72.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $27.2m47.1k shares |
| CITADEL ADVISORS LLC | Added | $16.6m28.8k shares |
| IMC-Chicago, LLC | Reduced | $9.2m15.9k shares |
| PEAK6 LLC | Added | $4.6m7.9k shares |
| Squarepoint Ops LLC | Unchanged | $1.3m2.3k shares |
| MILLENNIUM MANAGEMENT LLC | Unchanged | $922.7k1.6k shares |
| Walleye Trading LLC | Added | $922.7k1.6k shares |
| Point72 Asset Management, L.P. | Added | $461.4k800 shares |
| SIMPLEX TRADING, LLC | Reduced | $173.0k300 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $15.9m27.5k shares |
| CITADEL ADVISORS LLC | Added | $10.1m17.5k shares |
| JANE STREET GROUP, LLC | Added | $8.5m14.8k shares |
| IMC-Chicago, LLC | Added | $7.9m13.7k shares |
| Walleye Trading LLC | Reduced | $2.7m4.6k shares |
| Squarepoint Ops LLC | Added | $2.1m3.7k shares |
| SIMPLEX TRADING, LLC | Added | $749.7k1.3k shares |
| MILLENNIUM MANAGEMENT LLC | Unchanged | $461.4k800 shares |
| Point72 Asset Management, L.P. | Reduced | $288.4k500 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
LNA Holding SRL
13D · may seek influence
new · filed 2026-08-24
Stated purposeShareholders Agreement On the Closing Date, the Issuer, LNH and, solely for purposes of the standstill provisions set forth therein, FGI, entered into a shareholders' agreement (the "Shareholders Agreement"). Under the Shareholders Agreement, LNH and its affiliates are subject to a lock-up period with respect to the Consideration Shares, with 50% of such shares released from the lock-up on the 12-month anniversary of the Closing Date and the remaining 50% of such shares released from the lock-up on the 24-month anniversary of the Closing. The Shareholders Agreement further provides that the Board of Directors of the Issuer (the "Board") will take such actions as are necessary to increase the size of the Board by one director, and LNH will have the right to designate one director to the Bo… Full filing |
15.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 7.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
| STATE STREET CORP 13G · institution new · filed 2026-08-07 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 1 | $249.9k | 1 | $632.7k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 1 | $636.6k | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.04% of their portfolio | 4.7m $2.7bn | Added +6.7k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 3.9m $2.3bn | Added +12.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.08% of their portfolio | 3.2m $1.8bn | Added +37.0k |
| STATE STREET CORP 0.05% of their portfolio | 3.2m $1.8bn | Added +282.1k |
| BANK OF AMERICA CORP /DE/ 0.09% of their portfolio | 2.4m $1.4bn | Added +47.0k |
| FMR LLC 0.05% of their portfolio | 2.2m $1.3bn | Reduced -415.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.60% of their portfolio | 2.1m $1.2bn | Added +22.4k |
| Aristotle Capital Management, LLC 2.22% of their portfolio | 1.8m $1.1bn | Reduced -123.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.58% of their portfolio | 1.8m $1.0bn | Added +146.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.05% of their portfolio | 1.6m $919.9m | Added +12.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.09% of their portfolio | 1.6m $922.3m | Added +110.5k |
| JPMORGAN CHASE & CO 0.05% of their portfolio | 1.5m $852.6m | Reduced -393.3k |
| TCI FUND MANAGEMENT LTD 1.44% of their portfolio | 1.3m $758.4m | New |
| GOLDMAN SACHS GROUP INC 0.07% of their portfolio | 1.2m $670.9m | Added +277.5k |
| MORGAN STANLEY 0.03% of their portfolio | 1.0m $583.6m | Reduced -329.6k |
| Select Equity Group, L.P. 3.09% of their portfolio | 1.0m $583.2m | Reduced -22.2k |
| BAILLIE GIFFORD & CO 0.52% of their portfolio | 991.8k $572.0m | Reduced -95.6k |
| GARDNER RUSSO & QUINN LLC 4.56% of their portfolio | 705.4k $406.8m | Reduced -10.0k |
| KING LUTHER CAPITAL MANAGEMENT CORP 1.54% of their portfolio | 653.2k $376.7m | Reduced -13.5k |
| Invesco Ltd. 0.03% of their portfolio | 649.6k $374.6m | Reduced -41.3k |
| T. Rowe Price Investment Management, Inc. 0.24% of their portfolio | 641.3k $369.9m | Reduced -311.1k |
| ALKEON CAPITAL MANAGEMENT LLC 1.40% of their portfolio | 627.4k $361.8m | Reduced -120.0k |
| DIMENSIONAL FUND ADVISORS LP 0.06% of their portfolio | 586.1k $338.1m | Added +40.0k |
| NORTHERN TRUST CORP 0.04% of their portfolio | 570.3k $328.9m | Reduced -16.2k |
| NORGES BANK 0.03% of their portfolio | 557.1k $321.3m | Not comparable |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.04% of their portfolio | 492.5k $284.0m | Added +32.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.33% of their portfolio | 486.1k $280.3m | Added +38.0k |
| FRANKLIN RESOURCES INC 0.06% of their portfolio | 459.3k $264.9m | Reduced -68.9k |
| CIBC Bancorp USA Inc. 0.28% of their portfolio | 390.7k $225.5m | Reduced -83.9k |
| UBS Group AG 0.04% of their portfolio | 390.4k $225.2m | Added +36.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.04% of their portfolio | 386.0k $222.6m | Added +46.2k |
| Bank of New York Mellon Corp 0.03% of their portfolio | 345.6k $199.3m | Reduced -25.3k |
| D1 Capital Partners L.P. 0.57% of their portfolio | 345.1k $199.0m | Added +22.2k |
| VANGUARD FIDUCIARY TRUST CO 0.04% of their portfolio | 337.3k $194.5m | Reduced -2.0k |
| DAVENPORT & Co LLC 0.99% of their portfolio | 336.8k $194.7m | Reduced -5.4k |
| WELLS FARGO & COMPANY/MN 0.03% of their portfolio | 278.8k $160.8m | Added +12.2k |
| Amundi 0.04% of their portfolio | 263.5k $152.0m | Reduced -620 |
| Skye Global Management LP 2.83% of their portfolio | 252.0k $145.3m | Reduced -16.0k |
| Legal & General Group Plc 0.03% of their portfolio | 249.5k $143.9m | Reduced -17.0k |
| Mawer Investment Management Ltd. 0.95% of their portfolio | 241.5k $139.3m | Reduced -14.1k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 4.41% of their portfolio | 238.7k $137.6m | Added +78.1k |
| GREAT LAKES ADVISORS, LLC 0.99% of their portfolio | 226.6k $130.7m | Added +9.4k |
| DEUTSCHE BANK AG\ 0.04% of their portfolio | 225.9k $130.3m | Reduced -9.5k |
| RAYMOND JAMES FINANCIAL INC 0.03% of their portfolio | 222.6k $128.4m | Reduced -16.1k |
| Douglass Winthrop Advisors, LLC 2.16% of their portfolio | 217.1k $125.2m | Reduced -2.0k |
| 59 North Capital Management, LP 2.75% of their portfolio | 214.1k $123.5m | New |
| Diamond Hill Capital Management, LLC (Investment Advisor) 0.99% of their portfolio | 213.9k $123.4m | Reduced -75.2k |
| Findlay Park Partners LLP 1.61% of their portfolio | 207.3k $119.5m | Added +13.0k |
| Clearbridge Investments, LLC 0.09% of their portfolio | 190.9k $110.1m | Reduced -23.8k |
| LONDON CO OF VIRGINIA 0.62% of their portfolio | 187.1k $107.9m | Reduced -2.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.32% of their portfolio | 181.9k $104.9m | Reduced -90.5k |
| DekaBank Deutsche Girozentrale 0.17% of their portfolio | 177.5k $102.2m | Unchanged |
| Nuveen, LLC 0.02% of their portfolio | 173.4k $100.0m | Added +4.1k |
| Swiss National Bank 0.05% of their portfolio | 169.9k $98.0m | Reduced -7.1k |
| RDST Capital LLC 7.81% of their portfolio | 163.6k $94.3m | Added +68.5k |
| Rathbones Group PLC 0.34% of their portfolio | 160.4k $92.5m | Reduced -165.6k |
| ROYAL BANK OF CANADA 0.02% of their portfolio | 157.9k $91.0m | Reduced -159 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.14% of their portfolio | 157.1k $90.6m | Added +3.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio | 151.8k $87.5m | Reduced -20.6k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.05% of their portfolio | 147.4k $85.0m | Added +11.3k |
| Camrose Capital Investment Partners LLP 9.52% of their portfolio | 146.2k $84.3m | Added +9.5k |
| MCDONALD CAPITAL INVESTORS INC/CA 5.85% of their portfolio | 139.0k $80.1m | Reduced -10.9k |
| STEGINSKY CAPITAL LLC 11.99% of their portfolio | 138.5k $79.9m | Added +10.2k |
| SEI INVESTMENTS CO 0.07% of their portfolio | 136.9k $79.0m | Reduced -8.8k |
| Sumitomo Mitsui Trust Group, Inc. 0.04% of their portfolio | 129.4k $74.6m | Added +1.5k |
| Vanguard Global Advisers, LLC 0.03% of their portfolio | 129.2k $74.5m | Reduced -2.2k |
| FEDERATED HERMES, INC. 0.10% of their portfolio | 125.5k $72.4m | Reduced -18.9k |
| Freestone Grove Partners LP 0.47% of their portfolio | 124.3k $71.7m | New |
| Junto Capital Management LP 1.32% of their portfolio | 123.5k $71.2m | New |
| HSBC HOLDINGS PLC 0.03% of their portfolio | 119.0k $68.5m | Added +7.4k |
| Progeny 3, Inc. 3.37% of their portfolio | 113.2k $65.3m | Unchanged |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.42% of their portfolio | 111.2k $64.1m | Reduced -4.3k |
| RHUMBLINE ADVISERS 0.05% of their portfolio | 110.6k $63.8m | Added +111 |
| Corient Private Wealth LP 0.09% of their portfolio | 110.5k $63.7m | Added +5.9k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.04% of their portfolio | 109.2k $63.0m | Added +12.8k |
| M.D. Sass, LLC 4.11% of their portfolio | 107.5k $62.0m | Added +4.4k |
| BARCLAYS PLC 0.02% of their portfolio | 101.9k $58.7m | Reduced -44.3k |
| National Pension Service 0.04% of their portfolio | 95.2k $54.9m | Added +5.7k |
| Quantum Capital Management, LLC / NJ 6.78% of their portfolio | 93.7k $54.0m | Added +3.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 91.6k $52.8m | Added +9.2k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.05% of their portfolio | 90.0k $51.9m | Added +11.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.05% of their portfolio | 88.6k $51.1m | Added +18.4k |
| Fenimore Asset Management Inc 1.05% of their portfolio | 88.1k $50.8m | Reduced -181 |
| Harvey Partners, LLC 3.48% of their portfolio | 87.0k $50.2m | Added +23.1k |
| CITIGROUP INC 0.02% of their portfolio | 83.7k $48.3m | Added +22.9k |
| Russell Investments Group, Ltd. 0.04% of their portfolio | 83.3k $48.0m | Reduced -8.9k |
| GLENMEDE TRUST CO NA 0.21% of their portfolio | 82.2k $47.4m | Reduced -2.6k |
| Pictet Asset Management Holding SA 0.05% of their portfolio | 82.1k $47.4m | Added +44.9k |
| California Public Employees Retirement System 0.03% of their portfolio | 79.0k $45.6m | Reduced -32.7k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.02% of their portfolio | 77.0k $44.4m | Added +5.4k |
| Lazard Freres Gestion S.A.S. 0.76% of their portfolio | 75.9k $43.8m | Reduced -5.8k |
| TimesSquare Capital Management, LLC 0.62% of their portfolio | 73.3k $42.3m | Added +12 |
| TD Asset Management Inc 0.04% of their portfolio | 71.2k $41.1m | Reduced -17.6k |
| Mitsubishi UFJ Trust & Banking Corp 0.09% of their portfolio | 70.7k $40.8m | Reduced -4.8k |
| GILDER GAGNON HOWE & CO LLC 0.41% of their portfolio | 68.1k $39.3m | Reduced -1.1k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 67.0k $38.6m | Added +1.5k |
| Bornite Capital Management LP 4.73% of their portfolio | 65.2k $37.6m | New |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 64.3k $37.1m | Reduced -43.2k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 63.9k $37.6m | Reduced -10.7k |
| HERITAGE INVESTORS MANAGEMENT CORP 1.01% of their portfolio | 63.2k $36.4m | Added +941 |